A compact box-type substation

Abstract

This application discloses a compact prefabricated substation, including a casing, a door, a heat dissipation and ventilation mechanism, and an anti-condensation mechanism. The casing houses an adjacent transformer compartment, a high-voltage compartment, and a low-voltage compartment. The heat dissipation and ventilation mechanism includes ventilation ducts and vents. The ventilation ducts are installed on the upper part of one side wall of the casing, with a fan mounting slot at the duct outlet and the duct inlet connected to the casing. Ventilation vents are provided on the casing corresponding to the duct inlet area. The anti-condensation mechanism includes a heated anti-condensation plate located at the top of the casing. The adjacent transformer compartment, high-voltage compartment, and low-voltage compartment within the prefabricated substation result in higher internal space utilization and a more compact design. Simultaneously, the heated anti-condensation plate mitigates the problem of moisture accumulation at the top of the casing, which can cause damage to components due to excessive moisture.

Description

Technical Field

[0001] This application relates to the field of substation equipment technology, and in particular to a compact prefabricated substation. Background Technology

[0002] Compact prefabricated substations are integrated high-voltage switchgear, distribution transformers, and low-voltage distribution equipment. They feature a fully enclosed, movable steel structure enclosure and are widely used in urban power grids, factories, wind and solar power plants, and residential communities. Compared to traditional civil engineering substations, their core advantages include: smaller footprint, factory prefabrication shortening construction time, flexible configuration to adapt to diverse scenarios, and high automation supporting remote monitoring. Modern technologies further optimize their compactness, for example, by using environmentally friendly gas-insulated switchgear instead of traditional air-insulated switchgear, or by employing a U-shaped horizontal compartment layout to improve space utilization.

[0003] However, prefabricated substations, due to insufficient sealing or long-term exposure to humid outdoor environments, are prone to condensation buildup on the top due to temperature fluctuations. Moisture drips onto electronic components, causing corrosion of metal parts and potentially leading to short circuits or malfunctions. Furthermore, the compact structure exacerbates heat dissipation challenges, making it difficult to achieve both good heat dissipation and a compact design simultaneously. Utility Model Content

[0004] To address the issues of moisture accumulation and dripping onto electronic components at the top of the traditional compact prefabricated substation, as well as the mismatch between good heat dissipation and compact design, a compact prefabricated substation is proposed.

[0005] The above-mentioned objective of this utility model is achieved through the following technical solution:

[0006] A compact prefabricated substation includes a casing, a door, a heat dissipation and ventilation mechanism, and an anti-condensation mechanism. The casing contains an adjacent transformer compartment, a high-voltage compartment, and a low-voltage compartment.

[0007] The heat dissipation and ventilation mechanism includes ventilation ducts and ventilation openings. The ventilation ducts are installed on the upper part of the outer side wall of the housing. The ventilation duct outlet is provided with a fan mounting groove, and the ventilation duct inlet is connected to the housing. Ventilation openings are provided on the housing in the area corresponding to the ventilation duct inlet.

[0008] The anti-condensation mechanism includes a heated anti-condensation plate located at the top of the housing.

[0009] By adopting the above technical solution, when the prefabricated substation is in a humid environment, water vapor will enter the interior of the prefabricated substation shell. The ventilation openings and ventilation ducts are located in the upper part of the shell. The fans on the ventilation ducts work to make the gas flow upward. The gas will come into contact with the heating anti-condensation plate installed in the upper part of the shell. The heating anti-condensation plate has a high temperature, which prevents water vapor from accumulating on the heating anti-condensation plate, so that the water vapor can be discharged in time through the ventilation ducts. This prevents water vapor from accumulating on the top of the shell and dripping onto the electronic components, causing damage to the electronic components. The shell is equipped with adjacent transformer rooms, high-voltage rooms and low-voltage rooms, which makes the internal space of the prefabricated substation more efficient and compact. At the same time, the ventilation ducts installed on the outside of the shell can also play a role in heat dissipation.

[0010] Optionally, the heat dissipation and ventilation mechanism further includes a filter screen, and the outlet of the ventilation duct is provided with a filter screen mounting groove, which is far away from the outlet of the ventilation duct relative to the fan mounting groove. The filter screen is installed on the filter screen mounting groove, and the filter screen is detachably connected to the ventilation duct.

[0011] By adopting the above technical solution, the filter screen can play a dustproof role when the fan is not working, preventing dust from entering the housing and damaging electronic components.

[0012] Optionally, there are at least two heat dissipation and ventilation mechanisms, and both of them are located on the same side wall of the housing.

[0013] By adopting the above technical solution, there are at least two heat dissipation and ventilation mechanisms that are centrally distributed, which can better perform heat dissipation and other functions while keeping the overall volume relatively small.

[0014] Optionally, the heating anti-condensation plate is a curved plate with the concave side facing the ground.

[0015] By adopting the above technical solution, it is beneficial for the heating anti-condensation plate to achieve the anti-condensation effect, and it is also more conducive to the movement of water vapor along the heating anti-condensation plate.

[0016] Optionally, the anti-condensation mechanism also includes a water collection tank, which is located below the heating anti-condensation plate and is fixedly connected to two opposite side walls of the housing.

[0017] By adopting the above technical solution, moisture will accumulate in the water collection tank, preventing moisture from dripping directly from the heating anti-condensation plate onto the electronic components.

[0018] Optionally, the anti-condensation mechanism also includes a support plate, which is parallel to the ground, located inside the water collection tank and fixedly connected to one side plate of the water collection tank, and the heating anti-condensation plate is placed on the support plate.

[0019] By adopting the above technical solution, the effective water collection area of ​​the water collection tank is reduced by avoiding the direct connection between the heating anti-condensation plate and the water collection tank.

[0020] Optionally, the scaffolding has ventilation holes.

[0021] By adopting the above technical solution, when the temperature inside the shell is high, some of the moisture inside the water collection tank will turn into water vapor, which can be discharged from the shell through the air holes and ventilation pipes on the stacking plate, thus avoiding damage to electronic components caused by water vapor.

[0022] Optionally, the heating anti-condensation plate is covered with silicone.

[0023] By adopting the above technical solution, silica gel has good adsorption capacity, which is more conducive to preventing condensation and moisture.

[0024] In summary, this application has at least the following beneficial effects: the transformer room, high-voltage room and low-voltage room are arranged adjacently inside the prefabricated substation, which makes the internal space of the prefabricated substation more efficient and compact. At the same time, the heating anti-condensation plate prevents water vapor from accumulating on the top of the shell and dripping down, which could damage the components due to excessive water vapor. Attached image description:

[0025] Figure 1 This is a front view of a compact prefabricated substation.

[0026] Figure 2 This is a first cross-sectional view of a compact prefabricated substation;

[0027] Figure 3 This is a cross-sectional view of the ventilation duct of a compact prefabricated substation.

[0028] Figure 4 This is a cross-sectional view of point A of a compact prefabricated substation.

[0029] Figure 5 This is a schematic diagram of the top of a compact prefabricated substation.

[0030] Figure 6 This is a schematic diagram of a compact prefabricated substation anti-condensation mechanism;

[0031] Figure 7 This is an enlarged view of section B of a compact prefabricated substation.

[0032] Figure label:

[0033] 1. Shell; 11. Transformer compartment; 12. High-voltage compartment; 13. Low-voltage compartment; 14. First partition; 15. Second partition; 16. Third partition; 17. Fourth partition; 18. Fifth partition; 2. Box door; 3. Heat dissipation and ventilation mechanism; 31. Ventilation opening; 32. Ventilation duct; 321. Filter installation slot; 322. Filter; 323. Fan installation slot; 4. Anti-condensation mechanism; 41. Heating anti-condensation plate; 42. Water collection tank; 43. Overlapping plate; 431. Air hole. Detailed Implementation

[0034] like Figure 1 As shown, a compact prefabricated substation includes a housing 1, a door 2, and a heat dissipation and ventilation mechanism 3. The door 2 is located on the side wall of the housing 1 and is movably connected to the housing 1.

[0035] The number of heat dissipation and ventilation mechanisms 3 is at least two, and in this embodiment there are four. The heat dissipation and ventilation mechanisms 3 are located on one side wall of the housing 1, and the side wall where the heat dissipation and ventilation mechanisms 3 are located is adjacent to the side wall where the door 2 is located. The heat dissipation and ventilation mechanism 3 includes a ventilation duct 32, which is fixedly connected to the housing 1, and the air outlet of the ventilation duct 32 faces the ground.

[0036] like Figure 2 and Figure 3 As shown, the heat dissipation and ventilation mechanism 3 also includes a vent 31, a filter mounting groove 321, a filter 322, and a fan mounting groove 323. The vent 31 is opened on the side wall of the housing 1 where the ventilation duct 32 is located, and the vent 31 is located in the area where the ventilation duct 32 intersects with the housing 1.

[0037] A fan mounting slot 323 is provided at the air outlet of the ventilation duct 32. The fan mounting slot 323 is located inside the ventilation duct 32. A filter mounting slot 321 is provided on the upper part of the fan mounting slot 323. The filter 322 is installed on the filter mounting slot 321 and is movably connected to the ventilation duct 32.

[0038] The housing 1 is equipped with a transformer chamber 11, a high-voltage chamber 12 and a low-voltage chamber 13. A first partition 14 is provided between the transformer chamber 11 and the high-voltage chamber 12. The first partition 14 is fixedly connected to the housing 1 opposite to the side wall of the housing 1 where the door 2 is located, and the first partition 14 is parallel to the side wall of the housing 1 where the ventilation opening 31 is located.

[0039] A second partition 15 is provided between the transformer compartment 11 and the low-voltage compartment 13. The high-voltage compartment 12 and the low-voltage compartment 13 are separated by the second partition 15. The second partition 15 is perpendicular to the first partition 14 and perpendicular to the first partition 14. The second partition 15 is fixedly connected to the two side walls of the housing 1 adjacent to the side wall of the housing 1 where the door 2 is located.

[0040] The high-pressure chamber 12 is provided with a third partition 16, which divides the high-pressure chamber 12 into two parts. The third partition 16 is parallel to the first partition 14. The third partition 16 is fixedly connected to the shell 1 and to the second partition 15.

[0041] The low-pressure chamber 13 is provided with a fourth partition 17 and a fifth partition 18. Both the fourth partition 17 and the fifth partition 18 are parallel to the first partition 14, and the low-pressure chamber 13 is divided into three areas by the fourth partition 17 and the fifth partition 18. Both the fourth partition 17 and the fifth partition 18 are fixedly connected to the second partition 15, and both the fourth partition 17 and the fifth partition 18 are fixedly connected to the side wall of the housing 1 where the door 2 is located.

[0042] like Figure 4 and Figure 5 As shown, the compact box-type substation also includes an anti-condensation mechanism 4. The number of anti-condensation mechanisms 4 is at least one, and in this embodiment, the number of anti-condensation mechanisms 4 is five. The anti-condensation mechanisms 4 are located at the top inside the housing 1.

[0043] like Figure 6 and Figure 7 As shown, the anti-condensation mechanism 4 includes a water collection tank 42, a support plate 43, and a heating anti-condensation plate 41. One anti-condensation mechanism 4 includes two water collection tanks 42. The water collection tanks 42 are U-shaped. The bottom plates of the water collection tanks 42 are parallel to the ground and are located below the heating anti-condensation plate 41. The water collection tanks 42 are fixedly connected to the two opposite side walls of the shell 1.

[0044] An anti-condensation mechanism 4 includes two stacking plates 43, which are parallel to the horizontal plane. The two stacking plates 43 are located in two water collection tanks 42 respectively. The stacking plates 43 are fixedly connected to the side walls of the water collection tanks 42. The stacking plates 43 are provided with cylindrical air holes 431. The axis of the air hole 431 is perpendicular to the horizontal plane. The number of air holes 431 is at least one. In this embodiment, the number of air holes 431 is sixteen.

[0045] An anti-condensation mechanism 4 includes three heating anti-condensation plates 41. The heating anti-condensation plates 41 are curved panels with their concave surfaces facing the ground. The heating anti-condensation plates 41 are all placed on a placement plate 43, and the outer side of the heating anti-condensation plates is covered with silicone.

[0046] The workflow of this utility model is as follows:

[0047] In humid environments, the amount of water vapor inside the casing 1 increases, and the heating anti-condensation plate 41 will activate. Because the heating anti-condensation plate 41 has a high temperature, the water vapor will not accumulate on it. The heating anti-condensation plate 41 is a curved plate, and the water vapor will move downwards along the curved surface of the heating anti-condensation plate 41 and come into contact with the stacking plate 43. Since the temperature of the stacking plate 43 is lower than that of the water vapor, some of the water vapor will accumulate on the stacking plate 43, and some of the water vapor will be discharged from the casing 1 through the air vents 431 on the stacking plate 43 with the airflow. The water vapor will flow into the water collection tank 42 through the air vents 431 on the stacking plate 43. When the temperature inside the casing 1 increases, the moisture in the water collection tank 42 will turn into gas and be discharged from the casing 1 through the air vents 431 on the stacking plate 43 and the ventilation duct 32, thereby reducing the humidity inside the casing 1 and preventing excessive moisture from accumulating on the top of the casing 1 and dripping onto the electronic components, which could damage the electronic components inside the casing 1.

[0048] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of protection claimed by the present utility model, they are protected by patent law.

Claims

1. A compact prefabricated substation, characterized in that, It includes a housing (1), a door (2), a heat dissipation and ventilation mechanism (3) and an anti-condensation mechanism (4). The housing (1) contains a transformer room (11), a high-voltage room (12) and a low-voltage room (13) arranged adjacent to each other. The heat dissipation and ventilation mechanism (3) includes a ventilation duct (32) and a ventilation port (31). The ventilation duct (32) is installed on the upper part of the side wall of the housing (1). The outlet of the ventilation duct (32) is provided with a fan mounting groove (323), and the inlet of the ventilation duct (32) is connected to the housing (1). A ventilation port (31) is opened on the housing (1) in the area corresponding to the inlet of the ventilation duct (32). The anti-condensation mechanism (4) includes a heated anti-condensation plate (41) located at the top inside the housing (1).

2. A compact prefabricated substation according to claim 1, characterized in that, The heat dissipation and ventilation mechanism (3) also includes a filter screen (322). The outlet of the ventilation duct (32) is provided with a filter screen mounting groove (321), and the filter screen mounting groove (321) is far away from the outlet of the ventilation duct (32) relative to the fan mounting groove (323). The filter screen (322) is installed on the filter screen mounting groove (321), and the filter screen (322) is detachably connected to the ventilation duct (32).

3. A compact prefabricated substation according to claim 1, characterized in that, There are at least two heat dissipation and ventilation mechanisms (3), and all of the heat dissipation and ventilation mechanisms (3) are located on the side wall of the same housing (1).

4. A compact prefabricated substation according to claim 1, characterized in that, The heating anti-condensation plate (41) is a curved plate with the concave side facing the ground.

5. A compact prefabricated substation according to claim 1, characterized in that, The anti-condensation mechanism (4) also includes a water collection tank (42), which is located below the heating anti-condensation plate (41) and is fixedly connected to two opposite side walls of the shell (1).

6. A compact prefabricated substation according to claim 5, characterized in that, The anti-condensation mechanism (4) also includes a support plate (43), which is parallel to the ground. The support plate (43) is located inside the water collection tank (42) and is fixedly connected to one side plate of the water collection tank (42). The heating anti-condensation plate (41) is placed on the support plate (43).

7. A compact prefabricated substation according to claim 6, characterized in that, The stacking board (43) has air holes (431).

8. A compact prefabricated substation according to claim 1, characterized in that, The heating anti-condensation plate (41) is covered with silicone on the outside.

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